4
Installing the Batteries
•
Remove the battery cover from backside of the meter.
•
Insert three AA batteries into the battery compartment, note polarity.
•
Replace the battery cover into its original position. Installation is completed.
When the batteries are depleted, the meter allows using the DC5V power adapter with USB cable for power supply. NOTE, take out the batteries.
Filling the Electrolyte Solution
1.
Take out the dissolved oxygen probe and electrolyte solution from the packaging. Unscrew the membrane cap.
2.
Fill the membrane cap halfway with electrolyte solution.
3.
Screw the membrane cap onto the probe, excess electrolyte solution will drain out.
4.
Be sure the cathode of probe makes contact with membrane cap, the electrolyte solution in membrane cap should be without an air bubble.
Cathode
DO901 Portable Dissolved Oxygen Meter
